Door lock



MMAQQ. Feb. 6, 1928, L YE! FISHER! D908 LOGIS.

FILED JUNE 24. 1921.

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(patented t?? i923.

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JSEPFEI EARL FISHER, OF HAMILTON, 0R10.

DOGR LOCK.

Application filed June 24,

To @ZZ @0.7mm t may concern lie it known that l, Josine ema. Elsnigk, a citizen of the United Sti and a resi- 4 iilton, in the countyY oil liutler and i or (hio, him xiiivented new and improved Door Loek, orwhich the :following is a description;

My invention may be enibodied in loclts tor different purposes bat is more particnlarly intended for embodiment in loclis for the doors of automobiles and other vehicles.

The invention more particularly designed as an improvement on the loch forming the enbjectematter of a patent granted to me February 10, 1920, Number 1,3307693.

The general object of the present invention is to provide a novel arrangement ot the bolt in its relation to the latch means to hold the bolt restrained in the inner po sition to be automatically released With the closing` oil the door.

Reference is to be had to the accompanying draafings forming a part of this speciiication, it being understood that the drawings are merely illustrative ot one example of the invention.

ignre 1 is a horizontal section taken through a loch embodying my present invention showing the saine applied to a-door, the door being about to close;

Figure 2 is a View similar to Figure 1 showing the positions of the lool( pa 1ts after the door is closed to automatically release the bolt;

Figure 3 Figure 1.

My invention is shown applied to a door il hinged at i is a section on the line 3 3,

t usual. to the automobil@ :1. portion of which is 'indicated etV C; the letter D indicates the door 321mb. .li/ly improved door loclr nclndes a ible casing 10 to be fastened i; apnoved manner o the door i? i ig including a hous-n p; 11 for reciprocating; latch bolt12.. aid bolt is subject to a spring 13 pressing` gainst the inner end of the bolt and beingT oiled about the shank 1.4i. ln tl e baci-r plate 11ZL ot the partition 11 are openings 15, 16. Through the opening` 13 entends the laterally bent end 1i' of a latch bar 18 throiwh which the shanlr 14 extends loosely so that the bar 13 may assume a position approximately parallel With the bolt 14C or tilted to a position away from said bolts the latch bar 18 having clearance in a recess 19 in the door alongside the back plate 11a of bolt restrained and with the 1921. Serial N'O. 480,020.

the lock. On the latch bar 18 is a lateral lugl 20 adapted to protrude through the opening 15 and into a notch v21 formed in the adjacent side ol the bolt 12 to hold the springl 13 under compression. At the omiosite side of the bolts from the notch 21 a longer notch 22 is formed. A bolt-operating frame 24 is slidably mounted alongside the 'front plate ot the lool; and presents a member operating` in the notch The slide 2a is adapted to be operated by any suitable devices;y there being` shown latch and loch spindles 267 2'4" carrying projections 28 either of which may engage said slide 24h Relative movement oi the slide and the lock bolt 12 is permitted Within limit of the notch 22 between the end lug 23 and shoulder 23a at the opposite end of said notch. A spring` 30 engages the slide 211 tendingto normally maintain it in close relation With the bolt 12.

l/Vith the above-described construction the door being in the closed position of Figure 2 the operation of one of the spindles 26, 27 may be caused to move the slide 24 so that the engagement of the member 25 of the lng ..3 Will retract the bolt 12 thereby placing the springv 13 under compression. The door may now be swung` open thereby permitting` the spring 13 to throw the latch 18 in position for latch lue` 2O thereof to enter the notch 21, thereby engaging the belt 12 and holding the latter in the retracted position. lt now, the door be closed the projecting` end of the latch 18 will str'ke. the jamb l) after the bolt 12 has passed the said jamb so that the nose ot the bolt will lie at the inner side ot the jamb. rlhe engagement of the latch 13 `with the iamb 'will disengage the lireA 20 from the bolt 'l2 there by pe. little the spring; 13 to bolt to the loc jiainb is bereiled at c to emit-espone taey bevel 12L the fr nr if t i and thus when the bolt is shof nder ion of the spring 13 the matin ices Will exert a Wedging1 action tendm to draw the door laterally inward and cans ing` the jamb D to be tightly gripped between the bolt and the spring-pressed latch i The one spring 13, it will be observed1 series to give resilienc'vito the latch 1S and lso to shoot the bolt 12.

l would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, l do not limit myself strictly to the mechanical details herein illustrated, since manifestly the saine can be considerably varied without departure from the spirit of the inventionas de4 lined in the appended claims.

Having thus described my claim:

1. A door lock includinga bolt provided With a notch at each side thereof, means to retract the bolt in conjunction With vone of said notches, a' latch adapted to automatically engage the other notch when the bolt is retracted, said latch projecting beyond the bolt to contact With the door jarnb and be tripped thereby With the closing of the door, said latch having a lateral member through which said bolt extends, and a spring tendinvention, I

ing,- to project the bolt to the locking position and tending to engage said latch with the bolt.

2. A door lock including a bolt provided with a notch at each side thereof, a spring surrounding` f and tendingl to project said bolt, a slide frame litting in one of said notches adapted to retract said bolt, a spring pressing` said frame to a position permitting said bolt to niove to its projected position. an elongated latch projecting outward of said lock and hav-ing a projection to engage the other of said notches when the bolt is in its retracted position, the rear end of said elongated latch engaging the spring surrounding said bolt and is actuated thereby.

JOSEPH EARL FlSHEl. 

